<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>test</h1>

<form action="b" method="post">
    用户：<input type="text" name="name">
    提交：<input type="submit" value="submit">
</form>>
</body>
</html>